Silver Lake
Ramsey County, MinnesotaEutrophic
Silver Lake earns a D — measurements through 2024 show persistent nutrient pressure that limits clarity through the summer. With clarity and phosphorus scored, the sub-grades cluster within a letter of each other, pointing to stable conditions rather than one specific stressor.
At a TSI of 63, Silver Lake reads as eutrophic — nutrient-rich enough that summer algal growth and reduced clarity are expected, not unusual. A maximum depth of 47 ft puts Silver Lake in the middle of Minnesota's depth distribution. At 71 acres, Silver Lake sits below the Minnesota median: a small water where shoreline activity has an outsized effect on water quality. Silver Lake ranks 37 of 49 in Ramsey County — at the lower end of the locally monitored distribution.
Eurasian watermilfoil is established at Silver Lake, which can dampen recreational access and pressure the native plant community. Walleye are documented at Silver Lake, one of 12 fish species on record for the lake. A documented public access point at Silver Lake makes the lake usable for shore fishing, paddle craft, and trailered boats. Ice-out has been recorded 8 times at Silver Lake, with a median around Apr 12. Monitoring depth is thin here: the LakeGrade rubric is applied to a small number of sample years, and the grade will be revised as more data accumulates.
Source: EPA Water Quality Portal sampling records, Minnesota DNR LakeFinder, last sampled 2024-09-11. Grade methodology: LakeGrade methodology.
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Swimming Safety
Swimming not recommended, poor water quality with high algae risk
Water Quality Grade: D, Poor
Murky, only visible to about 4 ft. Phosphorus level: 94.5 µg/L. Trophic State Index: 63.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 4 ft | D |
| Phosphorus | 94.5 µg/L | F |
| Chlorophyll-a (Algae) | No data | |
| Trophic State Index (TSI) | 63 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Lake Details
| Characteristic | Value |
|---|---|
| Maximum Depth | 47 ft |
| Surface Area | 70.84 acres |
| Shoreline Length | 2.1 mi |
| Littoral Zone | 88% |
| Public Access | Yes |
Fish Species
Click a species to see all Minnesota and Wisconsin lakes where it is found.
→ Best fishing times for Silver Lake (14-day solunar calendar)
→ Is it safe to eat fish from Silver Lake? (mercury & PFAS guide)
→ Silver Lake fishing regulations (limits, seasons, special rules)
Invasive & Introduced Species
Red chips are ecologically harmful invasive species. Gray chips are stocked or introduced fish that aren't a current ecological concern.
Water Quality Trend: → Stable
Based on 5 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | ↑ Improving | +0.076 m/yr | 5 |
| Phosphorus | ↓ Declining | +5.4 µg/L/yr | 5 |
Ice Season
Historical ice data from Minnesota DNR (11 observations).
Estimated open water season: 235 days
| Earliest | Latest | |
|---|---|---|
| Ice-Out | 2016-03-15 (2016) | 2018-04-30 (2018) |
| Ice-In | 2006-12-01 (2006) | 2008-12-03 (2008) |
Most recent ice-out: 2020-03-28
Location
County Ranking
Ranked #37 of 49 lakes in Ramsey County
Cleaner Lakes Within 30 Miles
Silver Lake holds Grade D. 4 nearby lakes hold higher grades.
- CJohanna LakeRamsey County · mi · Higher grade (D → C)
- CJosephine LakeRamsey County · mi · Higher grade (D → C)
- CSouth Long LakeRamsey County · mi · Higher grade (D → C)
- CMoore LakeAnoka County · mi · Higher grade (D → C)
Nearby Lakes in Ramsey County
More Minnesota Lake Rankings
State Parks Near Silver Lake
Other Grade D Lakes in Minnesota
Eutrophic Lakes in Minnesota
DNR Fisheries Survey Summary
8 surveys on file from MN DNR Fisheries. Most recent: 2024-07-10 (Standard Survey).
Top Species by Catch Rate
| Species | Avg CPUE | Avg Weight |
|---|---|---|
| Black Bullhead | 45.70 | 0.26 lb |
| Black Crappie | 31.12 | 0.17 lb |
| Bluegill | 26.61 | 0.13 lb |
| Yellow Perch | 24.79 | 0.12 lb |
| Common Carp | 9.65 | 2.61 lb |
| Northern Pike | 5.94 | 3.73 lb |
CPUE = catch per unit effort, averaged across surveys (excludes juvenile shoreline seining). Higher CPUE = more abundant in standardized sampling.
Length Distributions
Number of fish caught at each inch class in the most recent survey that recorded lengths. Red dashed line marks an approximate trophy threshold for that species.
Black Bullhead
Black Crappie
Bluegill
Yellow Perch
From the 2024-07-10 survey
Silver Lake (West) is a 71-acre (62.5 littoral acres), class 38 lake located within the Village of St. Anthony and the City of Columbia Heights. The lake is currently managed by the Fishing in the Neighborhood (FiN) program. The City of Columbia Heights operates a small swimming beach in the northwest corner and a…
DNR Reports & Resources
Minnesota DNR LakeFinder publishes lake survey, fish stocking, water access, and aquatic plant data for Silver Lake. 3 reports on file.
- —Fisheries Lake Survey — SilverFisheries Lake Survey · MN DNR LakeFinder
- —Fish Stocking History — SilverFish Stocking History · MN DNR LakeFinder
- —Public Water Access Sites — SilverPublic Water Access Sites · MN DNR LakeFinder
EPA Impairment Status
Silver Lake is officially listed as impaired under Clean Water Act §303(d) in the 2024 EPA reporting cycle (IR category 4A).
Causes of impairment
A Total Maximum Daily Load (TMDL) plan has been approved.
Source: EPA ATTAINS assessment unit MN62-0083-00 · Official waterbody report
Data Sources
Water quality data from the EPA Water Quality Portal
Impairment status from EPA ATTAINS 303(d) database
Grading methodology based on Metropolitan Council standards
Lake details from Minnesota DNR LakeFinder
Ice data from Minnesota DNR Climate
Most recent sample: 2024-09-11
Monitoring stations: 2